Groups in example sentence

But even when this has been done, the very nature of epidemiological studies, which examine differences between preexisting groups, rather than deliberately inducing changes within the same individuals, means that a single study can only demonstrate a correlation between a substance and a health outcome, rather than a true cause and effect relationship.

More example sentences with word groups

Psychologist Bruce Tuckman came up with the phrase "forming, storming, norming, and performing” as phases on how groups work.

What's common among these groups of cells is that they all produce the neurotransmitter dopamine.

The problem is the lack of trust, the lack of confidence, the lack of partnership between NGOs, campaign groups, civil society organizations and multinational companies.

So, we have companies and non-profits and charities and all these groups that have employees or volunteers of some sort.

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